High-efficiency light-emitting devices based on quantum dots with tailored nanostructures

Nature Photonics

Volumn 9, Issue 4, 2015, Pages 259-265

  Yang, Yixing ^a   Zheng, Ying ^a   Cao, Weiran ^b   Titov, Alexandre ^a   Hyvonen, Jake ^a   Manders, Jesse R ^a   Xue, Jiangeng ^b   Holloway, Paul H ^a,b   Qian, Lei ^a  

^a NanoPhotonica Inc   (United States)

^b J Crayton Pruitt Family Department of Biomedical Engineering   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CURRENT DENSITY; EFFICIENCY; LIGHT EMISSION; NANOCRYSTALS; ORGANIC LIGHT EMITTING DIODES (OLED); QUANTUM CHEMISTRY; SEMICONDUCTOR QUANTUM DOTS;

EXTERNAL QUANTUM EFFICIENCY; HIGH-EFFICIENCY; LED DEVICE; LIGHT EMITTING DEVICES; LOW TURN-ON VOLTAGES; MASS PRODUCTION; OUTER SHELLS; SOLUTION-PROCESSED;

QUANTUM EFFICIENCY;

EID: 84926409695     PISSN: 17494885     EISSN: 17494893     Source Type: Journal    
DOI: 10.1038/nphoton.2015.36     Document Type: Article

References (48)

1. Ekimov, A. I. & Onushchenko, A. A. Quantum size effect in 3-dimensional microscopic semiconductor crystals. J. Exp. Theor. Phys. Lett. 34, 345-349 (1981).
2. Efros, A. L. Interband absorption of light in a semiconductor sphere. Sov. Phys. Semicond. 16, 772-775 (1982).
3. Brus, L. E. A simple model for the ionization potential, electron affinity, and aqueous redox potentials of small semiconductor crystallites. J. Chem. Phys. 79, 5566-5571 (1983).
4. Brus, L. Electronic wave-functions in semiconductor clusters - experiment and theory. J. Phys. Chem. 90, 2555-2560 (1986).
5. Alivisatos, A. P. Semiconductor clusters, nanocrystals, and quantum dots. Science 271, 933-937 (1996).
6. Lim, J. et al. Perspective on synthesis, device structures, and printing processes for quantum dot displays. Opt. Mater. Express 2, 594-628 (2012).
7. Shirasaki, Y., Supran, G. J., Bawendi, M. G. & Bulovic, V. Emergence of colloidal quantum-dot light-emitting technologies. Nature Photon. 7, 13-23 (2012).
8. Coe, S., Woo, W. K., Bawendi, M. & Bulovic, V. Electroluminescence from single monolayers of nanocrystals in molecular organic devices. Nature 420, 800-803 (2002).
9. Sun, Q. et al. Bright, multicoloured light-emitting diodes based on quantum dots. Nature Photon. 1, 717-722 (2007).
10. Caruge, J. M., Halpert, J. E., Wood, V., Bulovic, V. & Bawendi, M. G. Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers. Nature Photon. 2, 247-250 (2008).
11. Cho, K. S. et al. High-performance crosslinked colloidal quantum-dot light-emitting diodes. Nature Photon. 3, 341-345 (2009).
12. Kim, T. H. et al. Full-colour quantum dot displays fabricated by transfer printing. Nature Photon. 5, 176-182 (2011).
13. Qian, L., Zheng, Y., Xue, J. & Holloway, P. H. Stable and efficient quantum-dot light-emitting diodes based on solution-processed multilayer structures. Nature Photon. 5, 543-548 (2011).
14. Kwak, J. et al. Bright and efficient full-color colloidal quantum dot light-emitting diodes using an inverted device structure. Nano Lett. 12, 2362-2366 (2012).
15. Lee, K. H. et al. Highly efficient, color-pure, color-stable blue quantum dot light-emitting devices. ACS Nano 7, 7295-7302 (2013).
16. Mashford, B. S. et al. High-efficiency quantum-dot light-emitting devices with enhanced charge injection. Nature Photon. 7, 407-412 (2013).
17. Lee, K. H. et al. Over 40 cd/A efficient green quantum dot electroluminescent device comprising uniquely large-sized quantum dots. ACS Nano 8, 4893-4901 (2014).
18. Dai, X. et al. Solution-processed, high-performance light-emitting diodes based on quantum dots. Nature 515, 86-89 (2014).
19. Adachi, C., Baldo, M. A., Thompson, M. E. & Forrest, S. R. Nearly 100% internal phosphorescence efficiency in an organic light-emitting device. J. Appl. Phys. 90, 5048-5051 (2001).
20. Baldo, M. A., Lamansky, S., Burrows, P. E., Thompson, M. E. & Forrest, S. R. Very high-efficiency green organic light-emitting devices based on electrophosphorescence. Appl. Phys. Lett. 75, 4-6 (1999).
21. Baldo, M. A. et al. Highly efficient phosphorescent emission from organic electroluminescent devices. Nature 395, 151-154 (1998).
22. Wang, X. et al. Non-blinking semiconductor nanocrystals. Nature 459, 686-689 (2009).
23. Mahler, B. et al. Towards non-blinking colloidal quantum dots. Nature Mater. 7, 659-664 (2008).
24. Chen, O. et al. Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking. Nature Mater. 12, 445-451 (2013).
25. Li, J. et al. Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction. J. Am. Chem. Soc. 125, 12567-12575 (2003).
26. Shen, H. et al. High quality synthesis of monodisperse zinc-blende CdSe and CdSe/ZnS nanocrystals with a phosphine-free method. CrystEngComm 11, 1733-1738 (2009).
27. Pal, B. N. et al. 'Giant' CdSe/CdS core/chell nanocrystal quantum dots as efficient electroluminescent materials: strong influence of shell thickness on light-emitting diode performance. Nano Lett. 12, 331-336 (2011).
28. Jha, P. P. & Guyot-Sionnest, P. Photoluminescence switching of charged quantum dot films. J. Phys. Chem. C 111, 15440-15445 (2007).
29. Woo, W. K. et al. Reversible charging of CdSe nanocrystals in a simple solid-state device. Adv. Mater. 14, 1068-1071 (2002).
30. Htoon, H. et al. Highly emissive multiexcitons in steady-state photoluminescence of individual 'giant' CdSe/CdS core/shell nanocrystals. Nano Lett. 10, 2401-2407 (2010).
31. Jin, S., Song, N. & Lian, T. Suppressed blinking dynamics of single QDs on ITO. ACS Nano 4, 1545-1552 (2010).
32. Wu, X. & Yeow, E. K. L. Charge-transfer processes in single CdSe/ZnS quantum dots with p-type NiO nanoparticles. Chem. Commun. 46, 4390-4392 (2010).
33. Bae, W. K., Char, K., Hur, H. & Lee, S. Single-step synthesis of quantum dots with chemical composition gradients. Chem. Mater. 20, 531-539 (2008).
34. Li, S., Steigerwald, M. L. & Brus, L. E. Surface states in the photoionization of high-quality CdSe core/shell nanocrystals. ACS Nano 3, 1267-1273 (2009).
35. Cherniavskaya, O., Chen, L. W., Islam, M. A. & Brus, L. Photoionization of individual CdSe/CdS core/shell nanocrystals on silicon with 2-nm oxide depends on surface band bending. Nano Lett. 3, 497-501 (2003).
36. Wei, S. & Zunger, A. Calculated natural band offsets of all II-VI and III-V semiconductors: chemical trends and the role of cation d orbitals. Appl. Phys. Lett. 72, 2011-2013 (1998).
37. xS/ZnS nanocrystals. Chem. Mater. 20, 5307-5313 (2008).
38. Bae, W. K. et al. Highly efficient green-light-emitting diodes based on CdSe@ZnS quantum dots with a chemical-composition gradient. Adv. Mater. 21, 1690-1694 (2009).
39. Dabbousi, B. O. et al. (CdSe)ZnS core-shell quantum dots: synthesis and characterization of a size series of highly luminescent nanocrystallites. J. Phys. Chem. B 101, 9463-9475 (1997).
40. Qian, L. et al. Electroluminescence from light-emitting polymer/ZnO nanoparticle heterojunctions at sub-bandgap voltages. Nano Today 5, 384-389 (2010).
41. Pandey, A. K. & Nunzi, J. M. Rubrene/fullerene heterostructures with a half-gap electroluminescence threshold and large photovoltage. Adv. Mater. 19, 3613-3617 (2007).
42. Pechstedt, K., Whittle, T., Baumberg, J. & Melvin, T. Photoluminescence of colloidal CdSe/ZnS quantum dots: the critical effect of water molecules. J. Phys. Chem. C 114, 12069-12077 (2010).
43. Cordero, S. R., Carson, P. J., Estabrook, R. A., Strouse, G. F. & Buratto, S. K. Photo-activated luminescence of CdSe quantum dot monolayers. J. Phys. Chem. B 104, 12137-12142 (2000).
44. Dembski, S. et al. Photoactivation of CdSe/ZnS quantum dots embedded in silica colloids. Small 4, 1516-1526 (2008).
45. Zhang, J., Li, D., Wu, W., Wu, H. & Zhu, W. Lifetime prediction of white OLED based on MLE under lognormal distribution. J. Test. Eval. 41, 398-402 (2013).
46. Kim, L. et al. Contact printing of quantum dot light-emitting devices. Nano Lett. 8, 4513-4517 (2008).
47. Haverinen, H. M., Myllyla, R. A. & Jabbour, G. E. Inkjet printed RGB quantum dot-hybrid LED. J. Disp. Technol. 6, 87-89 (2010).
48. Forrest, S. R., Bradley, D. D. C. & Thompson, M. E. Measuring the efficiency of organic light-emitting devices. Adv. Mater. 15, 1043-1048 (2003).